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Notification of control information in wireless communication system

a wireless communication system and control information technology, applied in the direction of data switching network, broadcast service distribution, instruments, etc., can solve the problems of terminals not being able to effectively use their batteries, and sni cannot be received if mbms

Active Publication Date: 2008-10-14
THOMSON LICENSING SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This approach enables mobile terminals to effectively monitor and receive updated control information, reducing power consumption and ensuring efficient battery usage by allowing updates to be checked during non-data transmission intervals.

Problems solved by technology

However, if the terminal discontinuously receives the MTCH according to the scheduling information, the SNI cannot be received if MBMS data is not being transmitted during discontinuous transmission.
Accordingly, a problem occurs because the terminal ineffectively receives the SCCPCH, to which the MTCH is mapped.
Consequently, the terminal cannot effectively use its battery.

Method used

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  • Notification of control information in wireless communication system
  • Notification of control information in wireless communication system
  • Notification of control information in wireless communication system

Examples

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Embodiment Construction

[0057]The present invention relates to notifying updated control information of a point-to-multipoint service to a mobile terminal in a wireless communication system.

[0058]In a method for notifying updated control information in a wireless communication system, while a session of an MBMS is proceeding, and during a specific time interval where data of the MBMS service is not transmitted, an indicator for indicating whether MCCH information has been updated is transmitted and received via an MICH. During a specific time interval where data of the MBMS service is transmitted, an indicator for indicating whether MCCH information has been updated is transmitted and received via an SCCPCH, to which an MTCH is mapped.

[0059]In accordance with a preferred embodiment of the present invention, the UTRAN transmits control information of the MBMS to the terminal via the SCCPCH to which the MCCH is mapped. The UTRAN also transmits, via the MICH, an NI for indicating whether the control informati...

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Abstract

The present invention relates to notifying updated control information of a point-to-multipoint service in a wireless communications system. An indication about whether control channel information has been updated is transmitted and received during a time interval where data of the point-to multipoint service is not transmitted between a network and a mobile terminal. Furthermore, and indication about whether the control channel information has been updated is transmitted and received via a physical channel, to which a traffic channel is mapped. This allows the mobile terminal, which receives data of a specific point-to-multipoint service discontinuously, to effectively recognize whether the control channel information has been updated.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]Pursuant to 35 U.S.C. § 119(a), this application claims the benefit of earlier filing date and right of priority to Korean Application No. 2004-0044711, filed on Jun. 16, 2004, the contents of which is hereby incorporated by reference herein in its entirety.FIELD OF THE INVENTION[0002]The present invention relates to transmitting and receiving a point-to-multipoint service in a wireless communication system, and more particularly, to notifying updated control information of the point-to-multipoint service to a mobile terminal.BACKGROUND OF THE INVENTION[0003]A universal mobile telecommunications system (UMTS) is a third-generation mobile communications system evolving from a global system for mobile communications system (GSM), which is the European standard. The UMTS is aimed at providing enhanced mobile communications services based on the GSM core network and wideband code-division multiple-access (W-CDMA) technologies.[0004]In Decembe...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): G01R31/08G06F11/00G08C15/00H04B7/00H04H20/71H04J1/16H04J15/00H04J3/14H04L1/00H04L12/26H04L12/40H04Q7/20H04B7/26H04H1/00H04J3/00H04J99/00H04W4/06H04W48/12H04W72/00H04W72/12
CPCH04W72/005H04W48/12H04W72/30H04W76/40H04W4/06
Inventor LEE, YOUNG DAECHUN, SUNG DUCKYI, SEUNG JUNE
Owner THOMSON LICENSING SA